that was run by the u.s. will be commanded by nato, an obama diplomatic win. but many in congress warn president obama not to send u.s. ground troops to depose gadhafi, who is said to be in this car today. >> yes, we want him out. no, we don't want to do it at the enormous cost of military invasion. >> reporter: the president has to justify taking sides in what some see as a civil war. >> will america's commitment & end in days, not weeks, as the president promised? >> reporter: defense secretary gates admitted on "meet the press," libya is not vital. >> no, i don't think it's vital interests for the united states, but we clearly have interests there, and it's a part of the recently, which is a vital interest for the united states. >> reporter: a region in chaos, uprisings in egypt, syria, bahrain, jordan, might the president commit the u.s. military elsewhere. libya's already cost about $1 billion. with no clear end in sight. >>> tonight, some u.s. naviville vessels are reported to be pulling out of the mediterranean. tomorrow, u.s. allies meet about libya. the plan is to put pressure